gh-133678: Document C API third party tools (GH-134526)
(cherry picked from commit c3c88064f5905889057dcdfaaaa4a48f8e2d53d4)
Co-authored-by: Victor Stinner <vstinner@python.org>
Co-authored-by: Petr Viktorin <encukou@gmail.com>
Co-authored-by: Steve Dower <steve.dower@python.org>
gh-62824: Adjust test_alias_modules_exist test to use imports instead of file checks (GH-134777)
(cherry picked from commit 8704d6b39139d2b1c3dd871590188fb7deb8aaad)
Co-authored-by: Miro Hrončok <miro@hroncok.cz>
gh-134752: Improve speed of test_tokenize.StringPrefixTest.test_prefixes. (GH-134766)
(cherry picked from commit 579686d9fb1bccc74c694d569f0a8bf28d9ca85a)
Co-authored-by: Eric V. Smith <ericvsmith@users.noreply.github.com>
gh-134160: Use multi-phase init in documentation examples (GH-134296)
(cherry picked from commit 96905bdd273d2e5724d2c1b6b0f95ecb0daeaabe)
Co-authored-by: neonene <53406459+neonene@users.noreply.github.com>
Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
gh-134675: Add t-string prefixes to tokenizer module, lexical analysis doc, and add a test to make sure we catch this error in the future. (GH-134734)
* Add t-string prefixes to _all_string_prefixes, and add a test to make sure we catch this error in the future.
* Update lexical analysis docs for t-string prefixes.
(cherry picked from commit 08c78e02fab4a1c9c075637422d621f9c740959a)
Co-authored-by: Eric V. Smith <ericvsmith@users.noreply.github.com>
Disable immortalization around Py_CompileString*().
The same approach as 332356b that fixed the refleaks in compile() and eval().
E: 09e72cf can pass test_capi, test_sys and test__interpchannels with this patch for me.
(cherry picked from commit c60f39ada625562bff26400f304690c19fe9f504, AKA gh-134686)
Co-authored-by: neonene <53406459+neonene@users.noreply.github.com>
gh-134637: Fix performance regression in calling `ctypes` function pointer in `free threading`. (GH-134702)
Fix performance regression in calling `ctypes` function pointer in `free threading`.
(cherry picked from commit 3c0525126ef95efe2f578e93db09f3282e3ca08f)
Co-authored-by: Kumar Aditya <kumaraditya@python.org>
gh-119180: Updates to PEP 649/749 docs (GH-134640)
- Mention (again) that `type.__annotations__` is unsafe. It is now safe
when using only classes defined under PEP 649 semantics, but not with
classes defined using `from __future__ import annotations`.
- Mention that annotations on instances no longer work. There was already
an issue about this.
- Mention the general changes in the "Porting to Python 3.14" section.
- `annotationlib` was proposed by PEP-749, not PEP-649.
(cherry picked from commit 7291eaba8b20b19e7971d43d88286d5820e5eb56)
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
Co-authored-by: Emma Smith <emma@emmatyping.dev>
Co-authored-by: Carol Willing <carolcode@willingconsulting.com>
Correct Apple platform includes for iOS.
(cherry picked from commit 965662ee4a986605b60da470d9e7c1e9a6f922b3)
Co-authored-by: Russell Keith-Magee <russell@keith-magee.com>
gh-132493: Remove __annotations__ usage in inspect._signature_is_functionlike (GH-133415)
This check is potentially problematic because it could force evaluation of
annotations unnecessarily. This doesn't trigger for builtin objects (functions,
classes, or modules) with annotations, but it could trigger for third-party objects.
The check was not particularly useful anyway, because it succeeds if ``__annotations__``
is a dict or None, so the only thing this did was guard against objects that have an
``__annotations__`` attribute that is of some other type. That doesn't seem particularly
useful, so I just removed the check.
(cherry picked from commit cb6596c6aa30c8c3213c8746d5590e6e2757a6c1)
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
gh-132876: workaround broken ldexp() on Windows 10 (GH-133135)
* gh-132876: workaround broken ldexp() on Windows 10
ldexp() fails to round subnormal results before Windows 11,
so hide their bug.
(cherry picked from commit cf8941c60356acdd00055e5583a2d64761c34af4)
Co-authored-by: Sergey B Kirpichev <skirpichev@gmail.com>
Co-authored-by: Tim Peters <tim.peters@gmail.com>
gh-91048: Refactor and optimize remote debugging module (#134652)
Completely refactor Modules/_remote_debugging_module.c with improved
code organization, replacing scattered reference counting and error
handling with centralized goto error paths. This cleanup improves
maintainability and reduces code duplication throughout the module while
preserving the same external API.
Implement memory page caching optimization in Python/remote_debug.h to
avoid repeated reads of the same memory regions during debugging
operations. The cache stores previously read memory pages and reuses
them for subsequent reads, significantly reducing system calls and
improving performance.
Add code object caching mechanism with a new code_object_generation
field in the interpreter state that tracks when code object caches need
invalidation. This allows efficient reuse of parsed code object metadata
and eliminates redundant processing of the same code objects across
debugging sessions.
Optimize memory operations by replacing multiple individual structure
copies with single bulk reads for the same data structures. This reduces
the number of memory operations and system calls required to gather
debugging information from the target process.
Update Makefile.pre.in to include Python/remote_debug.h in the headers
list, ensuring that changes to the remote debugging header force proper
recompilation of dependent modules and maintain build consistency across
the codebase.
Also, make the module compatible with the free threading build as an extra :)
Co-authored-by: Łukasz Langa <lukasz@langa.pl>
(cherry picked from commit 42b25ad4d3d6bcdc28ddfe07d2bf8831378bb0d1)
gh-115999: Add PyCodeObject.co_tlbc to the debug offsets (GH-134286)
(cherry picked from commit dd7f1130570d50461b2a0f81ab01c55b9ce93700)
Signed-off-by: Pablo Galindo <pablogsal@gmail.com>
Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
gh-133960: Improve typing.evaluate_forward_ref (GH-133961)
As explained in GH-133960, this removes most of the behavior differences with ForwardRef.evaluate.
The remaining difference is about recursive evaluation of forwardrefs; this is practically useful
in cases where an annotation refers to a type alias that itself is string-valued.
This also improves several edge cases that were previously not handled optimally. For example,
the function now takes advantage of the partial evaluation behavior of ForwardRef.evaluate() to
evaluate more ForwardRefs in the FORWARDREF format.
This also fixes GH-133959 as a side effect, because the buggy behavior in GH-133959 derives from
evaluate_forward_ref().
(cherry picked from commit 57fef27cfc2bdfc1e3a65ef8c8a760198d15b14d)
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
annotationlib docs: note that ForwardRef.evaluate eventually defaults to empty globals (GH-134661)
(cherry picked from commit b51b08a0a5fedde4f74e4cc338b8b5ad9656ad50)
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
gh-134582: Fix t-strings untokenize() roundtrip removing space between braces (GH-134603)
(cherry picked from commit 52509cc94b1a18cb325dbfa7e5f830b32759a903)
Co-authored-by: Loïc Simon <loic.pano@gmail.com>
gh-133684: Fix get_annotations() where PEP 563 is involved (GH-133795)
(cherry picked from commit 3e562b394252ff75d9809b7940020a775e4df68b)
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
[3.14] gh-134168: fix `http.server` CLI support for IPv6 and `--directory` when serving over HTTPS (GH-134169)
(cherry picked from commit 2fd09b011031f3c00c342b44e02e2817010e507c)
Co-authored-by: ggqlq <124190229+ggqlq@users.noreply.github.com>
gh-80334: fix multiprocessing.freeze_support for other spawn platforms (GH-134462)
Doc/library/multiprocessing.rst: freeze_support: Change to specify spawn method instead of platform
Have multiprocessing.freeze_support() enable on spawn, not just win32.
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(cherry picked from commit 80284b5c5eebd0e603c38322f94a97a2853ceeba)
Co-authored-by: Eddy Mulyono <eddymul@gmail.com>
Co-authored-by: Gregory P. Smith <greg@krypto.org>
gh-128840: Limit the number of parts in IPv6 address parsing (GH-128841)
GH-128840: Limit the number of parts in IPv6 address parsing
Limit length of IP address string to 39
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(cherry picked from commit 47f1161d3a2bec52b5b5e952150141709c247da2)
Co-authored-by: Seth Michael Larson <seth@python.org>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Co-authored-by: Gregory P. Smith <greg@krypto.org>
gh-132983: Make _zstd C code PEP 7 compliant (GH-134605)
Make _zstd C code PEP 7 compliant
(cherry picked from commit 973b8f69d31b4d86c37e0b7194a209f4f2efff06)
Co-authored-by: Emma Smith <emma@emmatyping.dev>
The original reproducer only used 10 threads.
(cherry picked from commit fc0c9c24121c1a62b25b79062286f976699b59e9)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
